The st121hdfxa is a long range hdmi video extender kit that uses sc fiber optic cable to extend videoaudio from an hdmi equipped device to a remote display up to 2600 feet 800 meters away the extender supports full high definition video 1920x1200 1080p and includes both the transmitter and receiver for a complete ready to use digital signage solution not only is this an incredibly long range solution that can extend an hdmi signal across or between buildings but because fiber optics t